Introduction
The SkyGateway
The SkyExtender
The SkyExtender Dual Band
The SkyConnector
SkyExtender DualBand – High-Capacity Mesh Backhaul with AP

The SkyExtender™ DualBand’s unique integration of a long-range mesh backhaul and industry-standard 802.11 access point gives service providers great flexibility when deploying Wi-Fi access networks. With the extended range of the mesh backhaul, Wi-Fi can be deployed in dense coverage patterns, like blanketing the downtown area of a city, as well as being deployed in targeted locations such as hotzones or residences. This allows multiple distinct and separate Wi-Fi networks to connect to a high-capacity, redundant mesh backhaul to provide an economical and efficient means of deploying Wi-Fi access in outdoor environments.

Another significant benefit of the SkyExtender DualBand is its dual radio architecture, which eliminates the capacity conflict between subscriber access and the network backhaul. The 2.4 GHz radio provides an 802.11b/g access point with high-speed connectivity to Wi-Fi clients (laptops, PDAs, wireless VoIP phones) and the 5 GHz radio leverages SkyPilot’s innovative 8-antenna array to connect to the high-capacity, redundant wireless mesh backhaul and to SkyConnector™ CPE. The separation of access from backhaul enables the use of multiple non-overlapping channels when deploying a “honeycomb” of Wi-Fi cells, thus providing much greater throughput, subscriber density, network capacity, and scalability throughout the Wi-Fi access network. The result is a practical, elegant network architecture for deploying Wi-Fi access services to metropolitan, municipal, and campus networks.

Metropolitan, Municipal, and Campus Wireless Networks
Municipal districts, business parks, and residences
Public safety, essential services, and telemetry
Educational and corporate campuses
Public outdoor spaces – shopping malls, recreation areas, and parks
Multi-Service Applications
Outdoor Public Access Networks
Business or residential broadband Internet access
Wireless Voice over IP (wVoIP)
Video surveillance and security for public or private networks
Provide scalable Wi-Fi capacity and coverage with the SkyExtender DualBand

The SkyExtender DualBand can provide blanket Wi-Fi coverage while taking advantage of a
high-capacity mesh backhaul for improved range, capacity, and fault tolerance.
Key Benefits
Long-range mesh backhaul enables deployment flexibility for Wi-Fi services
Dual radio architecture (one for 802.11b/g subscribers and one for 5 GHz backhaul) overcomes well documented inefficiencies and scalability issues with single-radio, omnidirectional mesh networks
5 GHz backhaul combines benefits of mesh networking and point-to-point links
- Mesh networking: 360° coverage, multiple links with optimized routing and link redundancy, load balancing capabilities
- Point-to-point links: high-power (28.2 W/44.5 dBm EIRP) focused beams and eight 18 dBi antennas improve penetration and extend range up to 10 miles/16 km
High-power (3.2 W/35 dBm EIRP) Wi-Fi access point with 9 dBi antenna provides broad coverage to 802.11b/g subscribers
Supports SkyConnector CPE for fixed Internet access services to enterprise and residential subscribers
Multi-service network capable of providing end-to-end security and quality of service for VoIP
Auto-discovery and rapid provisioning minimize deployment expenses
Multiple topology options and network scalability enables growth capabilities
OFDM modulation can provide non-line of sight (NLOS) connectivity in multipath environments
Access Point
16 SSIDs with VLAN mapping
Dynamic channel selection
Traffic Management
VLAN support: IEEE 802.1q
Traffic Prioritization: IEEE 802.1p, protocol type, IP port, IP ToS field, and IP address list
Traffic Filtering: protocol type, IP port, and IP address list
Traffic Shaping: upstream and downstream per-user rate control
Topology
Mesh, point-to-multipoint, and point-to-point, in any combination and with multiple hops between base station and subscriber nodes
Configuration, Management, & Monitoring
NMS integration: SNMPv2c
EMS: SkyProvision and SkyControl
IP address: DHCP or static
Firmware: Multiple versions stored in nonvolatile memory; updated via FTP
Provisioning: Manual or automated
Confi guration fi le: XML over HTTP
SNMP MIBs: MIB-II (RFC 1213); EtherLike (RFC 2665); Bridge (RFC 1493); 802.11; SkyPilot private MIB
Remote logging
Remote management: CLI via Telnet, SNMPv2c
Local management: RS-232 serial console port

Wireless

5 GHz wireless backhaul
(mesh, point-to-multipoint,
or point-to-point)
802.11b/g AP
(Wi-Fi subscriber access)
Frequency band 4.940-5.150, 5.150-5.450,
5.450-5.725, or 5.725-5.850 GHz
2.400-2.497 GHz
EIRP
(EIRP selected for country-specific regulations)
44.5 dBm/28.2 W peak,
36 dBm/4 W average,
33 dBm/2 W average,
30 dBm/1 W average, or
36 dBm/4 W peak
35.0 dBm/3.2 W or
29.0 dBm/800mW
Media access Time Division Duplex (TDD) 802.11b/g CSMA/CA
Modulation technique OFDM OFDM (802.11g) &
DSSS (802.11b)
Modulation rates 6 to 54 Mbps 802.11b: 1 to 11 Mbps
802.11g: 6 to 54 Mbps
Throughput
Up to 20 Mbp
Latency
8-10 ms roundtrip per hop
Antennas 8-antenna array (360° coverage), each antenna 45° horizontal x 6° vertical, 18 dBi 2 external 9 dBi omnidirectional & antennas with transmit & receive diversity
Channel width 5, 10, or 20 MHz 20 MHz
Channel resolution 5 MHz frequency control 5 MHz frequency control
Receive sensitivity -90 dBm at 6 Mbps modulation -98 dBm at 1 Mbps modulation
Connectivity Connects with SkyExtenders, SkyExtender DualBands, and SkyConnectors Connects with 802.11b/g Wi-Fi clients
Authentication MD5-based certificates RADIUS support for multiple servers, 802.1x
Encryption 128-bit AES on all wireless links AES, WPA (EAP-TTLS, EAP-PEAP/ MSCHAPv2 with TKIP), MIC, and
dynamic WEP

Product Specifications

Connectors RJ-45: power (Power over Ethernet)
RJ-45: RS-232 serial for local management
Mounting Tower, utility pole, lampposts, building, or other infrastructure
Outside diameter up to 2.0”
Range Up to 10 miles/16 km
LEDs Wireless activity, wireless link
Dimensions 33.0” (83.8 cm) H x 12.2” (31.0 cm) diameter
Weight 15.0 pounds (6.75 kg)
Operating temperature -40° to 131° F (-40° to 55° C)
Wind loading Up to 150 mph (240 km/h)
Enclosure/humidity NEMA-4X
Power 110VAC, 50-60 Hz input; 10 Watts
Certifications FCC Part 15, FCC 47 CFR Part 15, Class B USA;
compliance with UL safety standards, CE, C-Tick, IC RSS210 Issue 5
EMI and susceptibility FCC Part 15.107 and 15.109
Warranty One-year limited warranty on hardware;
90-day limited warranty on software
 
For more details, kindly call our friendly Sales Personnel at : (65) 6227 7515
© 2001-2006 David Stephenson Communications Pte Ltd

315 Outram Road, #01-03 Tan Boon Liat Building, Singapore 169074
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